Clean power conversion
Helps turn stored battery energy into usable AC power for everyday loads, backup circuits, and off-grid applications.
The Low Frequency Inverter 4000W-DC12V (split phase) AC input 240V AC output 120V and 240V is designed for split-phase backup and off-grid systems that need stable power conversion for larger loads. It helps turn stored battery energy into usable household power while keeping the system practical for residential and remote installations.
Helps turn stored battery energy into usable AC power for everyday loads, backup circuits, and off-grid applications.
A practical match for solar storage builds where the inverter needs to work smoothly with a dedicated battery bank.
Supports larger home and system layouts that need 120V and 240V power from the same inverter platform.
Low-frequency inverter systems are often chosen when the load profile is heavier and surge demand matters. This model is positioned for practical energy systems where steady output, battery support, and real-world reliability are more important than a tiny lightweight footprint.














| Low Frequency Inverter 4000W-DC12V (split phase) AC input 240V AC output 120V and 240V | |
| Model SKU | LFP4K12V240VSP |
|---|---|
| MODEL | |
| Product Type | Inverter |
| ELECTRICAL | |
| Output Waveform | Pure Sine wave/Same as input(Bypass mode) |
| Output Frequency | 50/60Hz ±0.3Hz |
| Input Voltage Range | Narrow: 100~135VAC / 194~243VAC; |
| Input Frequency Range | Narrow: 47-55±0.3Hz for 50Hz, 57-65±0.3Hz for 60Hz |
| Nominal Voltage | 120Vac 230Vac |
| Range (Grid or Generator) | 90V-135VAC/100V-135VAC (select by SW2) |
| AC input | Range (Grid or Generator) : 90V-135VAC/100V-135VAC (select by SW2), 140V-270VAC/184V-253VAC (select by SW2) |
| Output Wave | Pure Sine Wave (bypass mode) |
| Continuous Output Power | 4000W |
| Surge Rating | 12000W (20 Seconds) |
| Typical Transfer Time | 10ms (MAX) |
| Nominal Efficiency | >88% |
| Nominal Input Voltage | 12.0Vdc |
| Minimum Start Voltage | 10.0Vdc |
| Low Battery Alarm | 10.5Vdc-11.0Vdc |
| Low battery Trip | 10.0Vdc-10.5Vdc (select by SW1) |
| High Voltage Alarm | 16.0Vdc |
| Low battery Voltage Restart | 13Vdc |
| Power Saver Mode Idle Consumption | 18W |
| Charger Rate | 120+/-5A |
| AC input Range (Grid or Generator) | 90V-135VAC/100V-135VAC (select by SW2), 140V-270VAC/184V-253VAC (select by SW2) |
| Output Configuration | Split phase |
| PHYSICAL | |
| Dimensions(L*W*H) | 362*242*198mm 505*242*198mm 597*242*198mm |
| Unit Size | 17.4 x 9.5 x 7.8 inch |
| Shipping Weight | 57LB |
| Shipping Size | 26 x 12.6 x 12.0 inch |
| OPERATING LIMITS | |
| Over Charge Protection Shutdown | 15.7V |
Clear answers to common questions about this product, setup, compatibility, and use.